Refactor RecyclerView item decoration in AboutFragment and SettingsFr…

[MostafaMohamed2002]

…agment

• Extracted the custom RecyclerView item decoration logic into a separate class called CustomDividerItemDecoration.
• Added the CustomDividerItemDecoration to the RecyclerViews in AboutFragment and SettingsFragment.
• Applied a custom drawable as the divider with a width of 1dp and rounded corners.
• Set the left and right margins of the dividers to 50dp.

Fixes #139

Contributor checklist

• This pull request is on a separate branch and not the main branch

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Description

Related issue

#139

[github-actions]

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[MostafaMohamed2002]

do i have a permission to resolve conflicts ?

[andrewtavis]

You should be able to merge main into your branch in your IDE and then resolve them locally, @MostafaMohamed2002 :)